Time taken by the request in jetty 10 logging

Question

This is follow up question for configure jetty logging. Is there any attribute that gives the time taken by the request?

123.4.5.6 - - [27/Aug/2004:10:16:17 +0000] "GET /jetty/tut/XmlConfiguration.html HTTP/1.1" 200 76793 "http://localhost:8080/jetty/tut/logging.html" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040614 Firefox/0.8"

The above params are already defined in the configure jetty logging. but I do not see any param that gives us the time taken by the request.

Note - it used to be called log latency in the jetty9 - jetty9 custom logging

Answer 1

You will need to change the format string of CustomRequestLog to include the %T percent code. This is documented in the javadoc for CustomRequestLog. (see https://javadoc.io/doc/org.eclipse.jetty/jetty-server/latest/org.eclipse.jetty.server/org/eclipse/jetty/server/CustomRequestLog.html)

• %T - The time taken to serve the request, in seconds.
• %{UNIT}T - The time taken to serve the request, in a time unit given by UNIT. Valid units are ms for milliseconds, us for microseconds, and s for seconds. Using s gives the same result as %T without any format; using us gives the same result as %D.

If you are not using CustomRequestLog and extending RequestLog yourself you can get the latency yourself by doing:

long latency = System.currentTimeMillis() - request.getTimeStamp();